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Finding the Fourth Proportional to 27,391.12, 37,799.12 and 15,454.16

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Solution

The fourth proportional to 27,391.12, 37,799.12 and 15,454.16 is: 21,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,391.12 : 37,799.12 = 15,454.16 : x
  2. Step 2: Convert to fraction form
    27,391.12/37,799.12 = 15,454.16/x
  3. Step 3: Cross multiply
    27,391.12x = 37,799.12 × 15,454.16
  4. Step 4: Simplify right side
    27,391.12x = 584,153,648.34
  5. Step 5: Solve for x
    x = 584,153,648.34/27,391.12
  6. Step 6: Final answer
    x = 21,326.39

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Find fourth proportional to 27,392.12, 37,800.50 and 15,455.16
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.